Cluster of elm oyster mushrooms (Hypsizygus ulmarius, Lyophyllum ulmarium) on a birch tree between Orekhovo and Lembolovo, north from Saint Petersburg. Russia, September 28, 2016
Bitter oyster mushrooms (Panellus stipticus) on a tree stump near Lisiy Nos, west from Saint Petersburg. Russia, September 12, 2016
White oyster mushrooms (Pleurotus) at the base of an oak or may be sweet gum tree on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest north from Montgomery. Texas, September 14, 2019
Caps of oyster mushrooms Pleurotus calyptratus on a fallen aspen tree in Sablino, south from Saint Petersburg. Russia, May 25, 2017
Frozen oyster mushrooms on a tree near Leroy Avenue, in front of Wakehurst Hall of Salve Regina University, before they were cut off and cooked. Newport, Rhode Island, November 13, 2004
Oyster mushrooms (Pleurotus ostreatus) on a tree in Huntsville Park. Texas, December 28, 2013
Lung oyster mushrooms (Pleurotus pulmonarius)(?) on a tree stump in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, August 14, 2016
Young elm oyster mushrooms (Hypsizygus ulmarius) on a trunk of elm tree in Lisiy Nos, west from Saint Petersburg. Russia, September 12, 2016
Elm oyster mushrooms (Hypsizygus ulmarius, Lyophyllum ulmarium) on a birch tree between Orekhovo and Lembolovo, north from Saint Petersburg. Russia, September 28, 2016
Oyster mushrooms (Pleurotus ostreatus) on a tree stump in Communist section of Alexander Nevsky Lavra. Saint Petersburg, Russia, October 18, 2016
Late fall oyster mushrooms (Panellus serotinus) on a tree in area of Dibuny - Pesochny near Saint Petersburg. Russia, March 4, 2017
Oyster mushrooms Pleurotus calyptratus on a fallen aspen tree in Sablino, south from Saint Petersburg. Russia, May 25, 2017
Pale oyster mushrooms (Pleurotus pulmonarius) on a tree in Pavlovsk Park. Pavlovsk, a suburb of Saint Petersburg, Russia, September 14, 2017
Oyster mushrooms (Pleurotus ostreatus) on a tree fallen across a creek in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, November 23, 2018
Oyster mushrooms (Pleurotus ostreatus) on a thin fallen tree on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest north from Montgomery. Texas, September 29, 2019
Caps of Oyster mushrooms (Pleurotus ostreatus) on a fallen oak tree on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest north from Montgomery. Texas, September 29, 2019
Underside of oyster mushrooms (Pleurotus ostreatus) at the base of a living elm tree in Lick Creek Park. College Station, Texas, August 11, 2020
Cluster of pale oyster mushrooms (Pleurotus pulmonarius) on a tree in Pavlovsk Park. Pavlovsk, a suburb of Saint Petersburg, Russia, September 14, 2017
Oyster mushrooms (Pleurotus ostreatus) at the base of a living elm tree in Lick Creek Park. College Station, Texas, August 11, 2020
Woolly oyster mushrooms (Hohenbuehelia mastrucata) on a broken end of a small (around 20 cm in diameter) fallen oak (could be other tree) on North Wilderness Loop Trail in Sam Houston National Forest near Richards. Texas, December 27, 2020
